4B launches an ATEX version of the Milli-Speed
4B has launched an ATEX version of its popular Milli-Speed, a loop powered 4 - 20 mA analogue output speed switch for PLC, DCS or stand-alone controllers.
The Milli-Speed switch is designed to detect belt slip, belt underspeed, stop motion, low speed or zero speed on bucket elevators, conveyors, airlocks, mixers, fans, grinders and many other rotating machines.
An inductive sensing device located in the nose of the Milli-Speed enclosure, it will detect a ferrous metal target and can be attached to a bolt head or a secondary device, such as 4B's Whirligig® sensor mount.
The Milli-Speed is fully encapsulated in a polycarbonate body that is corrosion and abrasion resistant, dust-tight and waterproof (IP67). Its approvals for explosive atmospheres include: ATEX, IECEx and CCCEx; Zones 20, 21 & 22 for dust and Zones 0, 1 & 2 for gas.
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